The exchange condition content of Cu 2 ＋,Zn 2 ＋,Mn 2 ＋,Al 3 ＋ was investigated by adding different concentration of potassium thiosulfate to the solid,and a pot experiment studied the effect of different concentration K 2 S 2 O 3 on the content of heavy metals in maize.The result reveals that the consistency of Cu 2 ＋,Zn 2 ＋,Mn 2 ＋ increased and the consistency of Al 3 ＋ decreased along with the potassium thiosulfate inputs increasingly in the maize;The concentration of Al 3 ＋ in the roots were much higher than its in the stems and lea...
